Petty, a fourth-round pick of the Jets in 2015, started seven games and appeared in 10 games over the past two seasons in New York. There, he completed 53.1 percent of his passes, averaged 5.5 yards per attempt, threw four touchdowns and 10 interceptions, and accumulated a 57.7 passer rating. So, he's still a project -- one that will require attention and dedication from Dolphins coach and quarterback guru Adam Gase if he's hoping something productive emerges out of this move.

In Miami, Petty slots in behind starter Ryan Tannehill, and backups Brock Osweiler and David Fales. To make the roster, Petty will likely have to beat out Fales, whose experience is even more limited than Petty's. In three career games, Fales has gone 31 of 48 (64.6 percent) for 287 yards (6.0 yards per attempt), one touchdown, one interception, and a 79.1 passer rating.

Meanwhile, the Jets probably won't care about the Dolphins scooping up their former quarterback. They've got enough to worry about with Darnold's transition to the NFL and their crowded quarterback depth chart, which remains unsettled.

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Sean Wagner-McGough joined CBS Sports in 2015 after graduating from UC Berkeley. A native of Seattle, Sean now resides in the Bay Area. He spends his spare time defending Jay Cutler on Twitter.
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